What's the best app to check ipad battery health/capacity, or should I say one that is closest to apple's test? I know of coconut battery but it seems to show much lower than apple's test. (on my last go, coconut showed 71% but apple's test showed >90%) I think my 2016 ipadpro's battery is kinda run down, but want to test before i send it in to avoid an immediate noop turnaround, since they'll only replace if their test shows <80%.